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9479 Madresplazamayo (2175 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2009479
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09236285089096309 3.242e-08  
a 2.618817873470012 1.0323e-08 au
q 2.376936388712112 8.3032e-08 au
i 4.540151540738301 4.4951e-06 deg
node 352.3885024142976 3.8458e-05 deg
peri 282.8392592560796 4.6354e-05 deg
M 158.400518773928 2.457e-05 deg
tp 2458519.400643135179
(2019-Feb-04.90064314)
0.00010609 TDB
period 1547.948014117828
4.24
9.1527e-06
2.506e-08
d
yr
n .2325659497067562 1.3751e-09 deg/d
Q 2.860699358227912 1.1276e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1120  
   data-arc span      22026 days (60.30 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56222  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:48:56  

Additional Information
 Earth MOID = 1.36397 au 
 Jupiter MOID = 2.24204 au 
 T_jup = 3.395 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457209.5 (2015-Jul-06.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09291487574057442 3.2274e-08  
q 2.375590420665209 8.2747e-08 au
tp 2456974.749497916212
(2014-Nov-13.24949792)
0.00010743 TDB
node 352.4711416617751 3.8412e-05 deg
peri 283.4634319594259 4.627e-05 deg
i 4.543372686094391 4.4974e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1120  
   data-arc span      22026 days (60.30 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56222  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:48:56  

Additional Information
 Jupiter MOID = 2.24204 au 
 T_jup = 3.395 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.041609260694669E-15 -2.654145065549667E-15 3.039013035857322E-13 -1.485019530578657E-15 2.964107486216545E-14 -3.363338508487269E-17
q -2.654145065549667E-15 6.847042851256235E-15 -1.03365785088463E-12 3.088521689933598E-15 -1.344067444408385E-13 4.49824728246196E-16
tp 3.039013035857322E-13 -1.03365785088463E-12 1.154223878171183E-8 -1.879176436589772E-12 2.774470787870318E-9 -1.977332135629579E-12
node -1.485019530578657E-15 3.088521689933598E-15 -1.879176436589772E-12 1.475482984138125E-9 -1.470838107692315E-9 -1.129561271095094E-12
peri 2.964107486216545E-14 -1.344067444408385E-13 2.774470787870318E-9 -1.470838107692315E-9 2.140953933913593E-9 6.896462087298071E-13
i -3.363338508487269E-17 4.49824728246196E-16 -1.977332135629579E-12 -1.129561271095094E-12 6.896462087298071E-13 2.022663822768638E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO435790  
diameter diameter 2.687 km 0.446 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.223   0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9479 Madresplazamayo (2175 P-L)          Discovered 1960-Sep-26 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 19981005/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2175 P-L = 1996 AC2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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